2024-03-29T05:30:50Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00030448
2023-01-16T04:23:58Z
320:321:322
Relationship between dispersion-forming capability of poly(4-vinylaniline) colloids and antimicrobial activity
Yamamoto, Tetsuya
101230
Furuta, Ryo
101231
Arakawa, Kenji
101232
Teshima, Aiko
101233
Soap-free emulsion polymerization
Dispersion stability
Antimicrobial activity
4-Vinylaniline
Cationic polymers synthesized from aromatic monomers such as styrene or 4-vinylaniline, and with molecular weight less than 1000 Da display antibacterial activities against Micrococcus luteus. We prepared polymer colloids exhibiting different tendencies to form stable dispersions in order to clarify the influence of this property on their antimicrobial activity against M. luteus. 4-Vinylaniline was polymerized by a soap-free emulsion procedure using cationic and anionic initiators to prepare polymer colloids with different capacities for forming dispersions. All synthesized colloids displayed positive zeta potentials due to the presence of amino groups from the monomers and/or initiators and included polymers with molecular weights < 1000 Da. However, only colloids prepared using a cationic initiator VA-044 or V-50 and capable of forming stable dispersions were antimicrobially active. Colloids synthesized using an anionic initiator KPS or V-501, which aggregate easily due to electro-attractive forces between functional groups, were not antimicrobial. Thus, the antimicrobial activity of a polymer colloid is closely associated with its ability to form a stable dispersion.
ファイル公開:2022-07-05
journal article
Elsevier
2020-07-05
application/pdf
Colloids and Surfaces A: Physicochemical and Engineering Aspects
596
124736
0927-7757
https://nagoya.repo.nii.ac.jp/record/30448/files/Influence_of_dispersion_stabilities_of_polymer_colloids0318.pdf
eng
https://doi.org/10.1016/j.colsurfa.2020.124736
© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/